Mercurial > gnulib
view m4/parse-datetime.m4 @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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# parse-datetime.m4 serial 21 dnl Copyright (C) 2002-2006, 2008-2013 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Define HAVE_COMPOUND_LITERALS if the C compiler supports compound literals dnl as in ISO C99. dnl Note that compound literals such as (struct s) { 3, 4 } can be used for dnl initialization of stack-allocated variables, but are not constant dnl expressions and therefore cannot be used as initializer for global or dnl static variables (even though gcc supports this in pre-C99 mode). AC_DEFUN([gl_C_COMPOUND_LITERALS], [ AC_CACHE_CHECK([for compound literals], [gl_cv_compound_literals], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[struct s { int i, j; };]], [[struct s t = (struct s) { 3, 4 }; if (t.i != 0) return 0;]])], gl_cv_compound_literals=yes, gl_cv_compound_literals=no)]) if test $gl_cv_compound_literals = yes; then AC_DEFINE([HAVE_COMPOUND_LITERALS], [1], [Define if you have compound literals.]) fi ]) AC_DEFUN([gl_PARSE_DATETIME], [ dnl Prerequisites of lib/parse-datetime.h. AC_REQUIRE([AM_STDBOOL_H]) AC_REQUIRE([gl_TIMESPEC]) dnl Prerequisites of lib/parse-datetime.y. AC_REQUIRE([gl_BISON]) AC_REQUIRE([gl_C_COMPOUND_LITERALS]) AC_STRUCT_TIMEZONE AC_REQUIRE([gl_CLOCK_TIME]) AC_REQUIRE([gl_TM_GMTOFF]) AC_COMPILE_IFELSE( [AC_LANG_SOURCE([[ #include <time.h> /* for time_t */ #include <limits.h> /* for CHAR_BIT, LONG_MIN, LONG_MAX */ #define TYPE_MINIMUM(t) \ ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t))) #define TYPE_MAXIMUM(t) \ ((t) ((t) 0 < (t) -1 \ ? (t) -1 \ : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) typedef int verify_min[2 * (LONG_MIN <= TYPE_MINIMUM (time_t)) - 1]; typedef int verify_max[2 * (TYPE_MAXIMUM (time_t) <= LONG_MAX) - 1]; ]])], [AC_DEFINE([TIME_T_FITS_IN_LONG_INT], [1], [Define to 1 if all 'time_t' values fit in a 'long int'.]) ]) ])